code: def reset(self, obs):
      pass
  
imports: import numpy
  import torch
  import torch.nn
  from torch.optim import Adam
  from .memory import SequentialMemory
  from .utils import to_numpy, to_tensor
label_desc: Use image node_id 8 for calling the DDPG obj's underlying member method code with example usage: obj.reset(obs) without return types